DVB-S2x Modulator / Demodulator
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EASii IC develops and distributes satellite communication products for the current and future generation of DVB-S2x demodulators

Fixed DATA
Infrastructure
Mobility
IOT and M2M

EASII IC has developed a DVB-S2x modulator/demodulator, Oxford-2, to address LEO, MEO and GEO orbits.

In this context, we participate in European programs that demonstrate and mature the new functionalities (Beam Hopping, VLSNR, Super Frame, ….) that are implemented in our Oxford-2 circuit.

PROGRAM:

ESA ARTES FreeHopper

OXFORD-2

DVB-S2X satellite modem

The EZiD211, also known as Oxford-2, is a state-of-the-art Satellite Modem ASIC aimed at the rigorous demands of the earth-segment market.

Fully compliant with the DVB-S2 standard ETSI EN 302 307-2, Oxford-2 implements the latest S2X Adaptive Coding and Modulation (ACM), Very low SNR (VLSNR) and Super Frame functionalities. It is engineered to support a wide array of constellations including GEO , MEO and LEO .

Technical specifications

Receiver Architecture

Dual Tuners
Integrated L-band tuners (950-2150 MHz).
Dual Demodulators
High symbol rate support from <1Msps to 500Msps.
Throughput
p to 2 x 720M channel bits/sec per chain (>1 Gbit/s aggregate).
Scalability
Chips can be used in tandem for higher rates.
Aggregation
Multi stream aggregation.

Signal Robustness

Low signal
VLSNR Reception possible down to -10 dB.
High Efficiency
256APSK coding at 20dB Carrier-to-Noise ratio.
Versatility
135 modulation & coding combinations for efficiency vs. robustness.
Doppler
LEO (200km) doppler compensation
Equalizer
Group delay and echo compensation

Transmission & Peripherals

Tx chain
IQ Streamer, S2X modulator, RCS2 modulator.
Clock recovery
Very flexible integrated NCR subsystem for return channel sync.
Interfaces
LVDS (High-perf FPGA) & RGMii (Low-cost Microprocessor).
Integration
Pad oscillator, antenna control & power supplies.

Physics and Power

Process
40nm CMOS Low Power.
Packing
13x13mm VQFPN-mr 168 package.
Energy Consumption
Highly efficient, ranging from <<2W to 5W at full load.

Formats

Annex-E
Super Frame 5, 6, 7.
DSF
With or without VLSNR
Beam hopping
Dwell size down to 500us, period up to 900ms
Package formats
GSE, Raw BBFrame, MPEG

On-chip debugging

Sample capture
Internal scope, spectrum of RF inputs.
SDD
Live and real-time telemetry
Packet signalling
Full realtime live telemetry
Observation registers
Deep diagnostics, acute controls capabilities

Evaluation board

Highly versatile.

Full-featured evaluation board enabling all Oxford2 capabilities

Features at a glance

Analog I/O
2 RF-In, 1 RF-Out.
Clocking
Versatile clocking solutions (Internal Xtal, ext ref, 10M-1pps, VCXO).
Digital I/Os
RGMII in/out, LVDS in/out.
Control
SPI (FTDI over USB), Ethernet.
Peripherals
FSK, Diseqc, SPI-master.
On-board power supply
Single power cord, all internal power rails managed.

Standalone, ideal for easy and deep evaluation purposes.

New: Oxford-2 System on Module (SOM)

Available now. Simplify your hardware design cycle.

Integrating a high-frequency satellite modem ASIC involves complex PCB routing and strict analog constraints. To solve this, EASii IC has released a dedicated SOM.

Why use SOM?
Analog Constraints Solved
We handle the sensitive RF routing and analog signal integrity so you don’t have to.
Rapid Integration
Drop the SOM into your carrier board and focus on the digital application layer.
Reduced Risk
Proven reference design layout ensures first-pass success.

Standalone, ideal for easy and deep evaluation purposes.

SDK

HAL in C, Remote API in python, Fully accessible from modern and responsive GUI.

Portability
Fully portable C HAL, built with GNU tools and binutils
Documentation
Inline API documentation available.
Modern GUI
Full HAL control, Full register observer.
Signal Analysis
Interactive FFT, constellation and scope viewers.
Python
Full HAL available from a Python dedicated module.

Available on Linux and MacOS-X (compiled from source), Windows (installer or compiled from source).

For datasheets, pricing, and the full Oxford-2 / SOM technical manual.

Peter NAYLER
Business Manager

Capture d'écran 2026-01-14 071402